Reporter: That's bradley cooper, cruising for carrie on "sex and the city." Don't come into the audition. Reporter: And was a counselor with amy poehler on "wet, hot, american summer." Who is that guy again? Everybody loved will. Not when he was on there. Reporter: Anne hathaway started younger. You know how many miles that light traveled to shine on you? I guess I don't. Reporter: Rockin' bobby socks in the anything but a city for other side of heaven." These mtv promos for "my sweet 16" were among jennifer lawrence's first credit. This best actor nominee as tom lee jones, in "love story." Playing ryan o'neill's roommate. In real life, he was al gore's. Later, he would play doctor on "one life to live." She'll turn 86 the day of the oscars. But in 1959, emmanuelle riva made "hiroshima mon amour," with a name. And long before bravely bearing body and sole for "the sessions," supporting actress contender, helen hunt, starred in "quarterback princess." Ten, hut. Reporter: On the bionic woman, she was alien princess, orla. Seeking refuge while her home planet was under attack. Hey, it happens.

This transcript has been automatically generated and may not be 100% accurate.

{"id":18566214,"title":"Oscar Nominees Before They Were Stars","duration":"1:54","description":"Chris Connelly reveals snippets from Oscar-nominated stars' earliest work on screen.","section":"GMA","mediaType":"Default"}